K&F Concept Lens Mount Adapter Compatible with Nikon Mount to Samsung NX Lens Camera Body AI-NX Allows to use Nikon AI mount Camera Lens to Samsung NX lens camera. High quality provides great protection and shock absorption for your lenses, water-resistant. Made of brass and aluminum(not plastic),the adapters are precision made to insure the perfect fit. Please note: this adapter ring is not suitable for Samsung NX1000, NX2000, NX3000 series. Please note: Infinity focus positionthe position of the infinity mark of the telephoto lens or super telephoto lens is shifted slightly to the positive side to enable focus adjustment even when focus shift is caused due to temperature changes.The shift range is denoted by an L-shaped line, Be sure to check the focus through the viewfinder even when you shoot at infinity.